Il 59 SB over I- 55
GoodWill County, Illinois · 1 Mi. N. of I-80 · Structure no. 099464200000000
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 335 ft
- 2 main spans
- Daily traffic
- 4,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 59 SB over I- 55 is a steel continuous stringer/multi-beam or girder carrying Il 59 SB over I- 55 in Will County, Illinois. It was built in 2009, so it is 16 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 4,600 vehicles a day, roughly 18% of them trucks, projected to reach 5,904 by 2046. The structure is 335 ft (102.2 m) long and 29 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 59 SB over I- 55 built?
It was built in 2009, making it 16 years old in 2025.
What condition is Il 59 SB over I- 55 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.
How much traffic does Il 59 SB over I- 55 carry?
About 4,600 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is Il 59 SB over I- 55?
The structure is 335 ft (102.2 m) long with a longest span of 164 ft (50 m) and a deck 29 ft wide.
Who owns Il 59 SB over I- 55?
It is owned by the State Highway Agency.